# 定义两个变量，存储姓名和年龄
student_name = "张三"
student_age = 18

# 依次打印出变量和字符串组合的内容
print("欢迎来到Python课堂！")
print("学生姓名：", student_name)
print("学生年龄：", student_age)
print("实验开始！")